High-sensitivity long-period fiber grating temperature sensor based on intensity measurement

被引：2
|
作者：
Liu, YQ [1 ]
Ge, CF [1 ]
Zhao, DH [1 ]
Liu, ZG [1 ]
Guo, ZY [1 ]
Dong, XY [1 ]
机构：
[1] Nankai Univ, Inst Modern Opt, Tianjin 300071, Peoples R China
来源：
OPTICAL ENGINEERING FOR SENSING AND NANOTECHNOLOGY (ICOSN'99) | 1999年 / 3740卷
关键词：
long period fiber grating; intensity measurement; temperature sensor; wavelength-tunable;
D O I：
10.1117/12.347725
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
We design a kind of all-fiber high-sensitivity temperature sensor based on intensity measurement, by using long period fiber grating (LPG) as sensor element and using tunable erbium-doped fiber ring laser as optical source. In the temperature range of 74 degrees C, the logarithm of the transmissive intensity of LPG is linear with the measured temperature and the linearity of sensing measurement can be repeated well, The resolution of temperature measurement is 0.1 degrees C.
引用
收藏
页码：492 / 495
页数：4
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